Patent · US Expired

Dental impression materials

US3950300A · kind A · utility

28Cited by

10References

25Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Paul Hittmair · Burghausen, DE
Wolfgang Hechtl · Burghausen, DE
Eckhart Louis · Burghausen, DE
Ernst Wohlfarth

Key dates

Filing date	May 28, 1974
Grant date	Apr 13, 1976
Priority date	—
Expiry date	May 28, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/44
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a method for preparing dental impression materials which comprises mixing A. a diorganopolysiloxane containing terminal triorganosiloxy groups in which at least one of the triorganosiloxy groups contains a vinyl group with B. an organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, C. a catalyst capable of promoting the addition of Si-bonded hydrogen to vinyl groups at room temperature and, if desired, D. additives, such as fillers, pigments, flavoring substances and plasticizers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.